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Vancouver, BC - July 31, 2018 - Zinc One Resources Inc. (TSX-V: Z; OTC Markets: ZZZOF; Frankfurt: RH33 - “Zinc One” or the “Company”) is pleased to announce additional results from its drill program at the Mina Grande Sur zone, part of the Bongará Zinc Mine project located in north-central Peru. Drilling in this area of Mina Grande Sur has been focused on the delineation of near-surface, high-grade mineralization. The drill program at Mina Grande Sur comprised 95 holes for 2,328.4 metres, of which results from 18 holes are reported herein. Noteworthy intercepts include 33.7 metres of 24.2% zinc and 16.5 metres of 26.5% zinc. Results from the additional 27 holes are pending and will be reported upon receipt.

Jim Walchuck, President and CEO of Zinc One commented, “The most recent drill results from Mina Grande Sur confirmed and better delineated mineralization not only quantified, in part, by historic drill holes, but recognized by last year’s pit sampling as well. We look forward to receiving the remaining data from Mina Grande Sur. The drilling at Mina Grande Centro and Mina Grande Norte were completed earlier in the month with results to be reported over the coming weeks.”

Mina Grande Sur Additional Drill Results Highlights:

Results from 50 holes were reported previously (see news releases from March 29, May 7, and May 29, 2018).

Mineralization at Mina Grande Sur includes zinc oxides, carbonates and silicates hosted by soils, highly-weathered carbonates, and fine- to coarse-grained dolomites, most of which are brecciated.

Mina Grande Sur is one of three known zones of high-grade, near-surface zinc-oxide mineralization along a 1.4 kilometre mineralized trend that is being tested by this drill program. Results from the 36 holes drilled have been reported at Bongarita, which lies approximately 1.3 kilometres northwest of Mina Grande Sur. At Mina Chica, which is approximately 1.2 kilometres northwest of Mina Grande Sur, a high-grade zinc deposit was discovered and mostly delineated with the drilling of 53 drill holes for 2,327.9 metres in the area (see news release from June 7, 2018). At Mina Grande Centro and Mina Grande Norte, 64 holes for 2,237.3 metres and 16 holes for 449.8 metres have been drilled, respectively. To date, 264 holes for 7,930.6 metres have been drilled in all areas.

Geology and Discussion of Results

The zinc mineralization at the Bongará Zinc Mine project is classified as a Mississippi Valley-type deposit and is mostly hosted by strongly dolomitized brecciated limestones that are stratabound. The mineralization can also occur as tabular bodies with irregular boundaries, which is a characteristic of that mineralization encountered along the periphery of breccias, especially at Mina Chica. Hydrozincite (a zinc oxide mineral), smithsonite (a zinc carbonate mineral), hemimorphite (a zinc silicate mineral), and a zinc-aluminum-iron silicate are the primary zinc minerals that are hosted by soils, dolomitized breccias, heavily-weathered fractured and vuggy dolomitized limestones, and fine- to coarse-grained dolomitized limestones.

The results from drill holes 51 through 68 at Mina Grande Sur can be found below in Table 1.

Table 1: Mina Grande Sur -Drill Results

Drillhole

Easting*

Northing*

azimuth

Inclination

Totaldepth

From(m)

To(m)

Total(m)

True vertical thickness(m)

zn(%)

MGS18051

171385

9367773

0

-90

16.0

No intercepts of interest

MGS18052

171385

9367773

320

-45

15.0

No intercepts of interest

MGS18053

171388

9367773

45

-45

15.0

1.5

4.5

3.0

2.1

10.6

MGS18054

171445

9367828

0

-90

28.7

0.0

3.0

3.0

3.0

15.0

MGS18055

171445

9367828

200

-60

62.0

1.5

5.6

4.1

3.5

10.3

15.6

49.3

33.7

29.2

24.2

MGS18056

171443

9367831

270

-45

31.5

0.0

7.5

7.5

5.3

27.8

17.0

20.2

3.2

2.3

13.7

MGS18057

171481

9367857

0

-90

31.5

0.0

13.5

13.5

13.5

18.9

MGS18058

171481

9367857

45

-45

28.5

0.0

13.5

13.5

9.5

21.4

MGS18059

171477

9367856

260

-45

32.5

0.0

4.5

4.5

3.2

17.9

MGS18060

171467

9367884

240

-45

32.5

0.0

8.5

8.5

6.0

18.0

MGS18061

171467

9367884

0

-90

20.5

0.0

5.2

5.2

5.2

17.1

MGS18062

171469

9367886

60

-45

22.0

0.0

1.5

1.5

1.1

12.9

MGS18063

171418

9367870

0

-90

42.0

0.0

3.0

3.0

3.0

9.9

7.5

12.0

4.5

4.5

14.0

MGS18064

171418

9367870

250

-45

29.5

No intercepts of interest

MGS18065

171421

9367871

60

-45

26.2

4.5

9.0

4.5

3.2

23.3

MGS18066

171387

9367803

0

-90

27.2

0.0

16.5

16.5

16.5

26.5

MGS18067

171387

9367803

50

-45

43.5

0.0

15.0

15.0

10.6

27.9

MGS18068

171385

9367802

230

-45

30.0

0.0

12.0

12.0

8.5

18.4

*Preliminary coordinates; land survey pending.

Sampling and Analytical Protocols

Zinc One follows a systematic and rigorous Quality Control/Quality Assurance program overseen by Dr. Bill Williams, COO and Director of Zinc One.

The sample from each core run is placed in a 60-centimetre long, plastic core box that has five columns. Core recovery, rock quality designation (“RQD”), and geologic features are logged and sample intervals, which are generally <2 metres, are chosen. Each core box is photographed and then sampled with a spatula (soil and heavily-weathered rock) or cut with a core saw, 50% of which is placed in a sample bag and stored on site in a secure location. The Company independently inserts certified control standards, blanks, and duplicates, all of which comprise at least 20% of the sample batch, to monitor sample preparation and analytical quality. The samples are stored in a secure area until such time they are shipped to the CERTIMIN laboratory in Lima (ISO 9001 Certified) for preparation and assay. At the laboratory, samples are dried, crushed, pulverized and then a four-acid digestion is applied. This is followed by the ICP-AES analytical technique for 33 elements, including lead. The same method is used to assay zinc for values up to 20%. If zinc exceeds 20%, it is then analyzed using a titration method. The laboratory also inserts blanks and standards as well as including duplicate analyses.

Qualified Person

The technical content of this news release has been reviewed, verified and approved by Dr. Bill Williams, COO and Director of Zinc One, a qualified person as defined by National Instrument 43-101.

About Zinc One Resources Inc.

Zinc One is focused on the exploration and development of prospective and advanced zinc projects in mining-friendly jurisdictions. Zinc One’s key assets are the Bongará Zinc Mine Project and the Charlotte Bongará Zinc Project in north-central Peru. The Bongará Zinc Mine Project was in production from 2007 to 2008 but was closed due to the global financial crisis and concurrent decrease in the zinc price. Past production included >20% zinc grades and recoveries over 90% from surface and near-surface zinc-oxide mineralization. High-grade, zinc-oxide mineralization is known to outcrop between the mined area and the Charlotte Bongará Project, which is nearly six kilometres to the NNW and where past drilling intercepted various near-surface zones with high-grade zinc. Zinc One is managed by a proven team of geologists and engineers who have previously constructed and operated successful mining operations.

Information set forth in this news release contains forward-looking statements that are based on assumptions as of the date of this news release. These statements reflect management’s current estimates, beliefs, intentions and expectations. They are not guarantees of future performance. Zinc One cautions that all forward looking statements are inherently uncertain and that actual performance may be affected by many material factors, many of which are beyond their respective control. Such factors include, among other things: risks and uncertainties relating to Zinc One’s limited operating history, its proposed exploration and development activities on the Bongará Zinc Oxide Project and the need to comply with environmental and governmental regulations. Accordingly, actual and future events, conditions and results may differ materially from the estimates, beliefs, intentions and expectations expressed or implied in the forward-looking information. Except as required under applicable securities legislation, Zinc One does not undertake to publicly update or revise forward-looking information.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the Exchange) accepts responsibility for the adequacy or accuracy of this release.

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